/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.hudi.sql;

import org.apache.avro.generic.IndexedRecord;

/***
 * A interface for CodeGen to execute expressions on the record
 * and return the results with a array for each expression.
 */
public interface IExpressionEvaluator {

  /**
   * Evaluate the result of the expressions based on the record.
   */
  Object[] eval(IndexedRecord record);

  /**
   * Get the code of the expressions. This is used for debug.
   */
  String getCode();
}
